Quadratic Functions Worksheet 2.1: Analyze the graph to determine key features of the quadratic function.
Graph of a quadratic function showing vertex at (-2, 3), line of symmetry at x = -2, x-intercepts at (-3, 0) and (-1, 0), y-intercept at (0, -9), increasing on (-∞, -2), decreasing on (-2, ∞), positive on (-3, -1), negative elsewhere, leading coefficient negative, |a| > 1, and equation f(x) = a(x + 2)² + 3.